1 files changed, 8 insertions, 1 deletions
diff --git a/clang/lib/AST/ExprConstant.cpp b/clang/lib/AST/ExprConstant.cpp
index 172a811bee1..8a6d4ba7c42 100644
--- a/clang/lib/AST/ExprConstant.cpp
+++ b/clang/lib/AST/ExprConstant.cpp
@@ -2073,7 +2073,14 @@ bool FloatExprEvaluator::VisitCastExpr(CastExpr *E) {
                                     Result, Info.Ctx);
     return true;
   }
-  // FIXME: Handle complex types
+
+  if (E->getCastKind() == CK_FloatingComplexToReal) {
+    ComplexValue V;
+    if (!EvaluateComplex(SubExpr, V, Info))
+      return false;
+    Result = V.getComplexFloatReal();
+    return true;
+  }
 
   return false;
 }